Solexir Cassette Cleaners are made of basic solutions with a very mild pH.  Most contamination on the wafers/disk holders or cassettes are particles which are electrostatically sicked  to the surface of cassettes. Usually such particles could be observed under the light.  Other type of contaminants on the wafers/disk holders and cassettes are fingerprints or oil contamination.

Solexir-7000 basic series with  a mild pH, are capable of  cleaning all oil or grease as well as particles from wafer/disk holders before final packaging.

Solexir 7000 Series: